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Success, and it's quick to get back to its shell.
成功 它迅速钻回它的贝壳里
A fringehead can never drop its guard, there's too much competition.
勃氏新热鳚必须时时提高警觉 四周的竞争太多
Some fish have moved to places where they have fewer rivals.
有些鱼类迁移到对手较少的地方
A mudskipper a fish that spends most of its life out of the sea.
一条弹涂鱼 这种鱼大多不在海里生活
It can walk on land and breathe air.
它可以在陆上行走，呼吸空气
Its life is very different from that of most fish.
它的生活和大多鱼类截然不同
A fish out of water maybe,
或许算是离乡背井
but they thrive here in Japan.
但它们在日本这里大量繁殖
So what's made this upheaval worthwhile?
这种变动的好处在哪里
The answer lies in the mud.
答案就在泥巴里
As the tide retreats it exposes mudflats.
退潮时暴露出泥地
Sunlight hits the rich silt
阳光照在肥沃的淤泥上
and tiny plants and animals flourish there.
泥地上的微小动植物蓬勃生长
All food for a mudskipper.
全都是弹涂鱼的食物
But life on land is not without problems,
但陆上生活并非无忧无虑
it's hard work to find a mate.
因为配偶难寻
